Pressure tank

[drhallright]

What is the difference between a hydronic pressure tank and a potable pressure tank? Can a hydronic tank be used for drinking water?

[Redwood]

No only equipment for potable water can be used for potable water....

[drhallright]

What is the difference in the tanks?

[kingsotall]

Excuse my ignorance, are we speaking of expansion tanks¿

[drhallright]

I have gotten a expansion tank that I would like to use as a pressure tank at a camp I have. It will be mostly for washing dishes and a shower. We use bottled water for drinking and cooking. Is here some reason an expansion tank can't be used as a pressure tank?

[Redwood]

The expansion tank does not have the capacity that a well tank would have...

As far as potability issues...

The components of a heating system do not have to protect the quality of the water as it is a closed loop behind a backflow prevention device and will hopefully never end up in your potable water supply.

Take trip over to the drain on your heating system and drain some water into a glass. Take a look at it and see how tasty it looks...

Be thankful that the expansion tank on your potable water system is constructed of materials safe for use with potable water.

A visit to
http://www.watts.com
or,
http://www.amtrol.com/
reading may answer your questions on materials used.